Currently have a Linear MCT-1, MCT-11, MCT-2, MCT-3, ACT-31B, ACT-21, or ACT-22 remote control, or

A Linear or Moore O Matic garage door opener with the phrase MEGACODE on it

The Linear Mega Code MCT-11, is a Singe Channel Visor garage door or automatic gate remote control that is designed for use with Linear's Mega Code series of receivers. The transmitter button will send a unique code when pressed. Programming is done by pressing the learn button on the receiver then just press the button on the remote and your ready to go.